WK5 D3 DNS, Sockets, Firewalls

What is DNS?

• A programming language

• A network security protocol

• A decentralised naming system that associates domain names with IP addresses

• A network interface card

What is the purpose of Sockets?

• o monitor network traffic

• To provide a way to transfer files over the internet

• To enable network communication between different computers or processes

• To secure a network against threats

What is a Firewall?

• A device that converts data from one format to another

• A program that monitors computer usage

• A network security system that monitors and controls incoming and outgoing network traffic

• A method for encrypting data in transit

What are the types of Firewalls?

• Packet-filtering Firewall, Intrusion Detection System, and Encryption Firewall

• Application Firewall, Next-Generation Firewall, and Hardware Firewall

• Web Application Firewall, Anti-virus Firewall, and Stateful Firewall

• Virtual Firewall, Software Firewall, and Proactive Firewall

What is DNS used for?

• To convert IP addresses into domain names

• To convert domain names into IP addresses

• To encrypt network traffic

• To compress network traffic

What is a DNS record type?

• An identifier for a specific domain name

• A piece of data associated with a domain name

• A way to encrypt network traffic

• A way to compress network traffic

What is Socket Programming?

• A way to filter network traffic

• A way to compress network traffic

• A way to encrypt network traffic

• A way to create network applications that communicate with each other